Climate Insights for Honiara

The climate in Honiara is hot. The average annual temperature is 25°C and approximately 4,004 mm of precipitation falls per year. Honiara receives a notable amount of rainfall throughout the year, including during its driest month. Honiara sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Honiara is hot. The average annual temperature is 77°F and approximately 157.6 in of precipitation falls per year. Honiara receives a notable amount of rainfall throughout the year, including during its driest month. Honiara sits near the equator, so seasonal temperature differences are minimal throughout the year.

Honiara has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is January, when average highs reach 27°C and the mean temperature sits around 25°C. August is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.Honiara has relatively stable temperatures year-round, staying within a 7°F range. The warmest month is January, when average highs reach 81°F and the mean temperature sits around 78°F. August is the coolest month, with minimum temperatures around 74°F and an average of 77°F. Daily temperature variation is modest, with an average difference of 6°F between highs and lows.

Honiara is a very wet location, receiving approximately 4,004 mm of precipitation annually, which averages out to around 334 mm per month. The wettest month is December, averaging 454 mm of rainfall. January and February also tend to see above-average precipitation. The driest month is June, with just 201 mm. That's 253 mm less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Honiara is a very wet location, receiving approximately 157.6 in of precipitation annually, which averages out to around 13.1 in per month. The wettest month is December, averaging 17.9 in of rainfall. January and February also tend to see above-average precipitation. The driest month is June, with just 7.9 in. That's 10 in less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Honiara is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 11km/h in winter, 9km/h in spring, 8km/h in summer, 8km/h in autumn.Honiara is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is July, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 7mph in winter, 6mph in spring, 5mph in summer, 5mph in autumn.

The table below shows monthly climate averages for Honiara based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Honiara based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.